#include "CppSQLite3.h"#include <cstdlib>
Go to the source code of this file.
Functions | |
| int | sqlite3_encode_binary (const unsigned char *in, int n, unsigned char *out) |
| int | sqlite3_decode_binary (const unsigned char *in, unsigned char *out) |
Variables | |
| static const bool | DONT_DELETE_MSG = false |
Function Documentation
| int sqlite3_decode_binary | ( | const unsigned char * | in, | |
| unsigned char * | out | |||
| ) |
Definition at line 2959 of file CppSQLite3.cpp.
Referenced by CppSQLite3Binary::getBinary().
{
int i, c, e;
e = *(in++);
i = 0;
while( (c = *(in++))!=0 ){
if( c==1 ){
c = *(in++);
if( c==1 ){
c = 0;
}else if( c==2 ){
c = 1;
}else if( c==3 ){
c = '\'';
}else{
return -1;
}
}
out[i++] = (c + e)&0xff;
}
return i;
}
| int sqlite3_encode_binary | ( | const unsigned char * | in, | |
| int | n, | |||
| unsigned char * | out | |||
| ) |
Definition at line 2855 of file CppSQLite3.cpp.
Referenced by CppSQLite3Binary::getEncoded().
{
int i, j, e, m;
int cnt[256];
if( n<=0 ){
out[0] = 'x';
out[1] = 0;
return 1;
}
memset(cnt, 0, sizeof(cnt));
for(i=n-1; i>=0; i--){ cnt[in[i]]++; }
m = n;
for(i=1; i<256; i++){
int sum;
if( i=='\'' ) continue;
sum = cnt[i] + cnt[(i+1)&0xff] + cnt[(i+'\'')&0xff];
if( sum<m ){
m = sum;
e = i;
if( m==0 ) break;
}
}
out[0] = e;
j = 1;
for(i=0; i<n; i++){
int c = (in[i] - e)&0xff;
if( c==0 ){
out[j++] = 1;
out[j++] = 1;
}else if( c==1 ){
out[j++] = 1;
out[j++] = 2;
}else if( c=='\'' ){
out[j++] = 1;
out[j++] = 3;
}else{
out[j++] = c;
}
}
out[j] = 0;
return j;
}
Variable Documentation
const bool DONT_DELETE_MSG = false [static] |
Definition at line 67 of file CppSQLite3.cpp.
Referenced by CppSQLite3Binary::allocBuffer(), CppSQLite3Statement::bind(), CppSQLite3Statement::bindNull(), CppSQLite3DB::checkDB(), CppSQLite3Statement::checkDB(), CppSQLite3Table::checkResults(), CppSQLite3Statement::checkVM(), CppSQLite3Query::checkVM(), CppSQLite3Statement::execDML(), CppSQLite3DB::execQuery(), CppSQLite3Statement::execQuery(), CppSQLite3DB::execScalar(), CppSQLite3Query::fieldDataType(), CppSQLite3Query::fieldDeclType(), CppSQLite3Query::fieldIndex(), CppSQLite3Table::fieldName(), CppSQLite3Query::fieldName(), CppSQLite3Table::fieldValue(), CppSQLite3Query::fieldValue(), CppSQLite3Statement::finalize(), CppSQLite3Query::finalize(), CppSQLite3Binary::getBinary(), CppSQLite3Query::getBlobField(), CppSQLite3Query::nextRow(), CppSQLite3DB::open(), CppSQLite3Statement::reset(), CppSQLite3Binary::setEncoded(), and CppSQLite3Table::setRow().
